“A disgrace” and “anti-Semite” were two of the (more printable) barbs launched last fall at John Mearsheimer, a renowned political scientist at the University of Chicago. But Mearsheimer’s infamous views on Israel—in the latest case, his endorsement of a book on Jewish identity that many denounced as anti-Semitic—should not distract us from the importance of his life’s work: a bracing argument in favor of the doctrine of “offensive realism,” which can enable the United States to avert decline and prepare for the unprecedented challenge posed by a rising China.

Iran can be contained. The path to follow? A course laid out half a century ago by a young Henry Kissinger, who argued that American chances of checking revolutionary powers such as the Soviet Union depended on our credible willingness to engage them in limited war.

Divided by geography, cursed by corruption, stunted by poverty, staggered by a growing insurgency—Afghanistan seems beyond salvation. Is it? From Somalia and the Balkans to Iraq, the U.S. military has been embroiled in conflicts that reflect an age-old debate: Can individual agency triumph over deep-seated historical, cultural, ethnic, and economic forces? Drawing on his experiences in Iraq, the commander of U.S. and NATO forces in Afghanistan, Stanley McChrystal, has his own answer to that question.

Obama needs to get behind his chosen general and put the spectacle of indecisiveness behind him. Otherwise, in the coming months, the Democrats may be seen as having lost a war. And if that happens, not even the Nobel Peace Prize will rescue his reputation.

As the Obama administration's recent scrapping of plans for an Eastern European missile defense system makes clear, while Poland and the Czech Republic may be our allies, it is mighty Russia to whom we are wise to defer

After 26 years and 70,000 casualties, Sri Lanka’s civil war has ended—for now. The key to easing the fears of the country’s historically beleaguered Buddhist majority while protecting its Hindu minority? Rediscovering the blend of faiths that laid the foundation for the ancient kingdom of Kandy.